refactor(nvim): simplify lazy loading configuration

lua/polish.lua

@@ -13,7 +13,7 @@ if ok_overseer then
       use_shell = false,
       auto_scroll = true,
       close_on_exit = false,
-      direction = "vertical",
+      direction = "tab",
       quit_on_exit = "success",
       open_on_start = true,
       hidden = true,